Apocephalus

{{Short description|Genus of flies}}

{{Automatic taxobox

| image = Apocephalus(Mesophora) longistylus, male.jpg

| image_caption = Apocephalus longistylus

| taxon = Apocephalus

| authority = Coquillett, 1901{{cite journal |last1=Coquillett |first1=Daniel William |title=[Apocephalus n. gen.]. In: Pergande, the ant decapitating fly |journal=Proceedings of the Entomological Society of Washington |date=1901 |volume=4 |pages=501 |url=https://www.biodiversitylibrary.org/page/2299952#page/511/mode/1up |access-date=24 October 2020}}

| type_species=Apocephalus pergandei

| type_species_authority =Coquillett, 1901

| diversity_link = List of Apocephalus species

| diversity = at least 300 species

| synonyms = *Mesophora Borgmeier, 1937{{cite journal |last1=Borgmeier |first1=T. |title=Uma nova especie de Apocephalus (Dipt. Phoridae), endoparasita de Chauliognathus fallax Germ. (Col. Cantharidae) |journal=Revista de Entomologia |date=1937 |volume=7 |pages=207–216}}

• Pseudoplastophora Schmitz, 1915{{cite journal |last1=Schmitz |first1=H. |title=Neue Beiträge zur Kenntnis der myrmecophilen und termitophilen Phoriden (Nr 16 bis 22: Neue Phoriden aus Vorderindien, gesammelt von J. Assmuth S. J., Bombay.) |journal=Wiener Entomologische Zeitung |date=1915 |volume=34 |pages=311–330|doi=10.5962/bhl.part.10622 |doi-access=free }}
• Zyziphora Peterson & Robinson, 1976{{cite journal |last1=Peterson |first1=B.V. |last2=Robinson |first2=W.H. |title=A new North American genus and species of the family Phoridae (Diptera) |journal=The Canadian Entomologist |date=1976 |volume=108 |issue=2 |pages=119–121|doi=10.4039/Ent108119-2 }}

}}

Apocephalus is a genus of ant-decapitating flies (insects in the family Phoridae). There are at least 300 described species in Apocephalus.